Simple Plex Human B7-H1/PD-L1 2nd Gen Cartridge

Catalog #: SPCKB-PS-003468 Datasheet / COA / SDS
Simple Plex Human PD-L1/B7-H1 2nd Gen assay kit for use on Ella instrument. Contains cartridge, sample diluent SD13 and SD10, and wash buffer
Catalog # Availability Size / Price Qty
SPCKB-PS-003468
SPCKA-PS-003468
SPCKC-PS-003468
ST01B-PS-003468
Control Products Available
Ella Automated ELISA Platform and Simple Plex Human B7-H1 Assay
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Simple Plex Human B7-H1/PD-L1 2nd Gen Cartridge Summary

Assay Type
Automated sandwich ELISA
Format
Microfluidic cartridge containing three Glass Nano Reactors (GNR)
Assay Length
90 minutes
Sample Type & Volume Required Per Well*
Cell Culture Supernates (25 uL), Serum (25 uL), EDTA Plasma (25 uL), Heparin Plasma (25 uL), Urine (25 uL)
Sensitivity
0.19 pg/mL
Assay Range
0.6 - 5,332 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine)
Specificity
Natural and recombinant human B7-H1.
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.

*The Sample Volume represented is based on the amount of sample incorporated into the reaction after taking into account the assay’s minimum required dilution for a given matrix. Serial dilution may be necessary to achieve some of the final sample volumes represented.

Product Summary

Simple Plex assay is for the detection of human B7 Homolog 1 (B7-H1) in cell culture supernatant (CCS), serum, plasma (EDTA/Heparin), and urine in Sample Diluent SD13.

Precision

Intra-Assay Precision (Precision within an assay) Each control was tested multiple times in one B7-H1 assay
Inter-Assay Precision (Precision between assays) Replicates of each B7-H1 control were tested in multiple assays performed by at least three technicians using two lots of reagents for human B7-H1

Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 1 2
n 16 16 49 48
Mean (pg/mL) 74.9 3685 71.7 3750
Standard Deviation 6.64 225 6.99 253
CV% 8.9 6.1 9.7 6.8

Recovery

Recovery was not necessary as human B7-H1 shows 5 points of natural linearity.

Linearity

Samples containing and/or spiked with high concentrations of human B7-H1 were serially diluted with Sample Diluent to produce samples within the dynamic range of the assay.
Simple Plex Human B7-H1 Assay Linearity

Scientific Data

Simple Plex Human B7-H1 Assay Standard Curve Data shown represents typical performance results for Lower Limit of Quantitation (LLOQ) and Upper Limit of Quantitation (ULOQ) for Simple Plex Human B7-H1 Assay. Assay range is 0.56-5332 pg/mL.

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Preparation and Storage

Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: PD-L1/B7-H1

PD-L1, also known as B7-H1 and CD274, is an approximately 65 kDa transmembrane glycoprotein in the B7 family of immune regulatory molecules. PD-L1 is expressed on inflammatory-activated immune cells including macrophages, T cells, and B cells, keratinocytes, enothelial and intestinal epithelial cells, as well as a variety of carcinomas and melanoma. PD-L1 binds to T cell B7-1/CD80 and PD-1. It suppresses T cell activation and proliferation and induces the apoptosis of activated T cells. It plays a role in the development of immune tolerance by promoting T cell anergy and enhancing regulatory T cell development. PD-L1 favors the development of anti-inflammatory IL-10 and IL-22 producing dendritic cells and inhibits the development of Th17 cells. In cancer, PD-L1 provides resistance to T cell mediated lysis, enhances EMT, and enhances the tumorigenic function of Th22 cells.

Long Name:
Programmed Death Ligand 1
Entrez Gene IDs:
29126 (Human); 60533 (Mouse); 499342 (Rat); 574058 (Porcine); 484186 (Canine); 102145573 (Cynomolgus Monkey)
Alternate Names:
Avelumab; B7-H; B7H1; B7-H1; B7H1PDCD1L1; CD274 antigenMGC142294; CD274 molecule; CD274; PDCD1L1; PDCD1LG1; PDCD1LG1MGC142296; PDL1; PD-L1; PD-L1B7 homolog 1; PDL1PDCD1 ligand 1; programmed cell death 1 ligand 1; Programmed death ligand 1

FAQs

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